Share-based compensation (Tables)

3 Months Ended

Mar. 31, 2019

Share-Based Compensation [Abstract]

Summary of status of company's stock option plan

A summary of the activity for stock options issued under the Company’s Plans for the indicated periods is presented below:

Stock Option Totals	Shares			Weighted Average Exercise Price
Outstanding at December 31, 2017		3,069,440		$	4.28
-Exercised		(5,000	)	$	3.43
-Granted		3,874,200		$	1.19
-Cancelled		(2,523,243	)	$	4.92
Outstanding at December 31, 2018		4,415,397		$	1.20
-Granted		258,500		$	1.25
Outstanding at March 31, 2019		4,673,897		$	1.20

Weighted average contractual life and exercise price

The following is the weighted average contractual life in years and the weighted average exercise price at March 31, 2019 of:

			Weighted Average Remaining	Weighted Average
	Number of Options		Contractual Life	Exercise Price
Options outstanding and vested		3,048,602	2.51 years	$	1.25